PRELIMINARY PROGRAM

FLUIDIZATION IX

An International Conference

May 17-22, 1998
Tamarron Hilton Resort and Conference Center
Durango, Colorado

Conference Co-Chairs:
L.S. Fan
Ohio State University
&
Ted Knowlton
PSRI

Engineering Foundation Conferences
345 East 47th Street
New York, New York 10017
1-212-705-7836 -- F: 1-212-705-7441
engfnd@aol.com -- www.engfnd.org

Sunday, May 17, 1998

15:00 - 18:00 Registration

16:00 - 21:00 Set up Posters for Sessions A, C and D

19:00 - 20:30 Dinner

20:30 - 22:00 Welcome Reception

Monday, May 18, 1998

07:00 - 08:30 Breakfast

08:30 - 08:55 Welcome and General Announcements

08:55 - 09:20 PLENARY LECTURE:
The Nature and Role of Effective Stress in Fluidized Systems
Professor Roy Jackson
Princeton University (USA)

09:20 - 10:30 SESSION A: HYDRODYNAMICS - DENSE PHASE FLUIDIZATION
(9 mini presentations)

1. Bifurcation in particle granular temperature of monodispersed glass spheres at the Geldart A/B transition
George D. Cody, David J. Goldfarb
Exxon Corporation Research Laboratory (USA)

2. Observations and measurements of isolated bubbles in a pressurized gas-fluidized bed
M.A. Gilbertson, D.J. Cheesman, J.G. Yates
University College, London (UK)

3. Gas flow characterization in turbulent fluidization for FCC catalyst
I. Taxil, P. Guigon, F. Archimbault, T.A. Gauthier
Institut Francais du Petrole (FRANCE)

4. Scale-up of particle motion in fluidized beds using positron emission particle tracking
Matthias Stein, Jonathan Seville, David J. Parker, and Dennis Allen
The University of Birmingham (UK)

5. Importance of the solid-to-gas density ration for scaling fluidized bed hydrodynamics
Paul A. Farrell, Matthre R. Hyre, Leon R. Glicksman
Massachusetts Institute of Technology (USA)

6. The effect of reactor diameter, gas velocity and static bulk density on the fluidized density of an industrial significant catalyst
Vincent G. Reiling
BP Chemicals Inc. (USA)

7. Experimental analysis of the influence of temperature on the bubbling regime of a gas fluidized bed
B. Formisani, R. Girimonte, L. Mancuso
University of Calabria (ITALY)

8. Some preliminary results on the effect of process temperature on the fluidization on the fluidization of some industrial material
Paola Lettieri, David Newton, John G. Yates, Geoff B. Smith
BP Chemicals Ltd. (UK)

9. Residence time distribution of particles in fluidized bed reactors for metallurgical processes
Arno Habermann, Franz Winter, Hermann Hofbauer, Peter E. Gogolek
Vienna University of Technology (AUSTRIA)

10:30 - 11:20 POSTER VIEWING for SESSION A and Coffee Break

11:20 - 12:20 GENERAL DISCUSSION for SESSION A

12:30 - 14:00 Lunch

14:00 - 17:00 Ad hoc sessions and/or free time

17:00 - 17:30 Cash Bar

17:30 - 19:00 Dinner

19:15 - 20:05 SESSION C: FINE POWDER FLUIDIZATION
(8 mini presentations)

1. Bubbling fluidization of fine powders in a high intensity acoustic field
Edward Levy, Carlos Herrera, Toru Masaki
Lehigh University (USA)

2. Hydrodynamics and flow regimes in CFB operated with multi- component mixtures
Jerome Motte, Yuri Molodtsof, Arnaud Delebarre
Universite de Technologie de Compiegne (FRANCE)

3. Measurement of fluidization properties of fine particles and the interaction with rheological parameters
N. Fatah and V. Cavrois
ENSC ET EC Lille (FRANCE)

4. Rheological parameters of homogeneously aerated fine powders - Its physical meaning and fracture model
H.O. Kono, L. Richman, B. Jordan, J. Su, E. Koresawa, T. Otake
West Virginia University (USA)

5. Agglomerating fluidization of wet powders and group C powders - A numerical analysis
Yuki Iwadate, Masayuki Horio
Tokyo University of Agriculture and Technology (JAPAN)

6. Experimental investigation and numerical simulation of a fast fluidized bed for fluidizing ultrafine powders
Ruoyu Hong and Hongzhong Li
Chinese Academy of Science (CHINA)

7. Fluidization of fine particles and its application to binderless granulation
R. Yamazaki, S. Hatano, T. Inukai, Y. Zhou, S. Mori
Nagoya University (JAPAN)

8. Effects of the powder properties upon the hold-up and the elutriation rate of fine particles in a powder-particle fluidized bed
Daisuke Taneda, Hitoshi Takahagi, Syouich Aoshika, Nobuyoshi Nakagawa, Kunio Kato
Gunma University (JAPAN)

20:10 - 20:35 SESSION D: MIXING, ENTRAINMENT AND ATTRITION
(5 mini presentations)

1. Analysis of ISO fluidized bed jet test for attrition of fluid cracking catalyst particles
R. Boerefijn, S.-H. Zhang, M. Ghadiri
University of Surrey - Guildford (UK)

2. Development of a standardized attrition test procedure
Rathna P. Davuluri, Ted M. Knowlton
Particulate Solid Research Inc. (USA)

3. Entrainment at high temperatures
I.M.F. Wouters, D. Geldart
University of Bradford (UK)

4. Lateral mixing in a 1.56 m diameter cold fluid bed model
R.B. White, Z. Zakhari
CSIRO, Division of Minerals (AUSTRALIA)

5. Experimental evaluation of gas-solids mixing chambers for short contact times fluidized reactors
C. Mirgain, C.L. Briens, M. Del Pozo, R. Loutaty, M.A. Bergougnou
University of Western Ontario (CANADA)

20:35 - 21:15 POSTER VIEWING for SESSIONS C AND D and Social Hour

21:15 - 22:00 GENERAL DISCUSSION for SESSIONS C AND D

Tuesday, May 19, 1998

07:00 - 08:30 Breakfast

08:30 - 08:55 PLENARY LECTURE
30-years of industrial research on fluidization - Bridging the gap between theory and practice
Dr. W.-C. Yang
Westinghouse Electric Corporation (USA)

09:00 - 09:50 SESSION B1: HYDRODYNAMICS -- CIRCULATING FLUIDIZED BEDS
(8 mini presentations)

1. Defining fast fluidization
Martin J. Rhodes, Xiao S. Wang
Monash University (AUSTRALIA)

2. Structure of the dense-dilute interface in fast fluidization
Martin J. Rhodes, Marit Sollaart, Xiao Shan Wang
Monash University (AUSTRALIA)

3. A mechanistic model for estimating annular wall layer thickness in circulating fluidized bed risers
Wen-Ching Yang
Westinghouse Electric Corporation (USA)

4. Experimental analysis of the gas-particles flow structure in the dilute zone of a circulating fluidized bed by image processing
T. Van den Moortel, R. Santini, L. Tadrist, J. Pantaloni
Universite de Provence - Technopole de Chateau Gombert (FRANCE)

5. Formation of particle streamers in the wall region of circulating fluidized bed risers
Richard C. Senior, John R. Grace
University of British Columbia (CANADA)

6. Gross behavior of parabolic strands in a riser
Hiromi Takeuchi, Alexander T. Pyatenko, Hiroyuki Hatano
Hokkaido National Industrial Research Institute Institute (JAPAN)

7. Suspension and diameter of cluster catering to lateral nonuniform profiles in circulating fluidized beds
Guangwen Xu, Jinghai Li, Kunio Kato
Gunma University (JAPAN)

8. Flow direction and size segregation of annulus solids in a riser
S.B. Reddy Karri and Ted M. Knowlton
Particulate Solid Research, Inc. (USA)

10:00 - 10:50 SESSION B2: HYDRODYNAMICS-CIRCULATING FLUIDIZED BEDS
(8 mini presentations)

1. Solids flux profiles in a high density circulating fluidized bed riser
Alan S. Issangya, Dingrong Bai, John R. Grace, Jesse Zhu
University of British Columbia (CANADA)

2. Modeling considerations for large scale high density risers
Suneel K. Gupta, Franco Berruti
University of Saskatchewan (CANADA)

3. Gas distributors for circulating fluidized bed combustors
Ernst-Ulrich Hartge and Joachim Werther
Technical University of Hamburg-Harburg (GERMANY)

4. The effect of the location of gas injection on the distribution of gas and catalyst in a riser
Apostolos E. Kostazos, Herbert Weinstein, Robert A. Graff
The City College of The City University of New York (USA)

5. The multi-variability of hydrodynamic behavior of gas-solid flow in circulating fluidized beds
Qiayu Zheng, Yan Jin, Shuliang Li
Tsighua University (CHINA)

6. Modeling the exit effects in circulating fluidized bed risers
Todd S. Pugsley
The University of New Brunswick (CANADA)

7. Dynamic behavior in transients of solids flow rates in a circulating fluidized bed system
Jianping Zhang, Peijun Jiang, Liang-Shih Fan
The Ohio State University (USA)

8. Flow structures in a downer-reactor
K.-E. Wirth and T. Schiewe
University of Erlangen-Nurmberg (GERMANY)

10:50 - 11:45 POSTER VIEWING for SESSION B and Coffee Break

11:45 - 12:30 GENERAL DISCUSSION for SESSION B

12:30 - 14:00 Lunch

14:00 - 17:00 Ad hoc sessions and/or free time

17:00 - 17:30 Cash Bar

17:30 - 19:00 Dinner

19:15 - 21:15 WORKSHOPS

19:30 - 21:00 Set up Posters for Sessions E, F, and G

21:15 - 22:15 Social Hour

Wednesday, May 20, 1998

07:00 - 08:30 Breakfast

08:30 - 08:55 PLENARY LECTURE:
Hydrodynamic models of gas-fluidized beds and their role for design and operation of fluidized bed chemical reactors
Professor J.A. M. Kuipers
Twente University (THE NETHERLANDS)

09:00 - 10:10 SESSION G: COMPUTATION FLUID DYNAMICS
(11 mini presentations)

1. A study of the dynamic behavior of individual particles in a gas fluidized bed
B.H. Xu and A.B. Yu
The University of New South Wales (AUSTRALIA)

2. Modeling the behavior of single solids and their mixtures in a circulating fluidized bed
L. Letizia, R. Ocone, A. Delebarre
University of Nottingham (UK)

3. Flow behavior in pneumatic conveying systems involving a binary particle mixture
Pawan Agarwal and Jennifer L. Sinclair
Purdue University (USA)

4. Discrete particle simulation of segregation phenomena in dense gas-fluidized beds
B.P.B. Hoomans J.A.M. Kuipers, W.J. Briels, W.P.M. van Swaaij
Twente University of Technology (THE NETHERLANDS)

5. Prediction of solid and gas flow behavior in a riser using a computational multiphase flow approach
S. Benyahia, H. Arastoopour and T. Knowlton
Illinois Institute of Technology (USA)

6. A model fo solid concentration in circulating fluidized beds
W.K. Gu and John C. Chen
Lehigh University (USA)

7. Numerical simulation of large particles fluidized bed: TFM versus DEM approach
Dinesh Gera, Mridul Gautam, Donald W. Lyons, Yutaka Tsuji
West Virginia University (USA)

8. Computer simulation of bubble formation in a gas-fluidized bed
Harald Laux and Stein Tore Johansen
Norwegian University of Technology and Science (NORWAY)

9. Prediction of cluter size and slip velocity in circulating fluidized beds by a DMSC model
Munehika Ito, Mayumi Tsukada, Jun Shimamura, Masayuki Horio
Tokyo University of Agriculture and Technology (JAPAN)

10. Modeling of the hydrodynamic behavior of circulating fluidized bed based on approach of primary similarity
Jinfu Wang, Yao Wang, Zhijing Yu
Tsinghua University (CHINA)

11. PC-based, near-real time, 3-dimensional simulation of fluidized beds
John S. Halow, Edward J. Boyle, C. Stuart Daw, C.E.A. Finney
Morgantown Energy Technology Center (USA)

10:10 - 11:00 POSTER VIEWING for SESSION B and Coffee Break

11:20 - 12:20 GENERAL DISCUSSION for SESSION B

12:30 - 14:00 Lunch

14:00 - 15:30 Video and Special Presentations

15:30 - 17:30 Workshop

17:30 - 19:00 Dinner

19:15 - 20:05 SESSION F: HEAT AND MASS TRANSFER
(7 mini presentations)

1. Effects of cluster behavior on gas-solid mass transfer in circulating fluidized beds
Jie Li, Xianping Zhang, Jia Zhu, Jinghai Li
Academia Sinica (CHINA)

2. Effect of turbulence on heat transfer in the freeboard of stationary and circulating fluidized beds
G.I. Palchonok, C. Breitholtz, V.A. Borodulya, B. Leckner
Academy of Sciences of Belarus (BELARUS)

3. Analysis of transport phenomena in two component fluidized beds
G. Donsi, G. Ferrari, A. De Vita
University of Salerno (ITALY)

4. Temperature of clusters at the wall of a circulating fluidized bed
Peter D. Noymer, Leon R. Glicksman
Massachusetts Institute of Technology (USA)

5. The radiative and convective heat transfer in circulating fluidized beds
H.G. Radauer, W. Linzer
Technical University of Vienna (AUSTRIA)

6. Experimental study of heat transfer in a Co-current downflow fluidized bed (downer)
Yuing Liang Ma, J.-X. Zhu
University of Western Ontario (CANADA)

7. The magnetic field effect on the particle behavior and heat transfer between an immersed horizontal tube and a gas magnetofluidized bed
A.F. Dolidovich, V.L. Ganzha, S.C. Saxena, S.H. Rahman
Belarus Academy of Sciences (BELARUS)

20:10 - 20:40 SESSION E: L-VALVE, PNEUMATIC CONVEYING AND OTHER SYSTEMS
(5 mini presentations)

1. The influence of operating parameters on the behavior of a small diameter L-valve
Umberto Arena, Antonio Cammarota, Maria Laura Mastellone
Instituto di Ricerche sulla Combustione - National Research Council
(CNR) (ITALY)

2. L-valves in a multi-stage countercurrent gas-solids fluidized bed system
O.E. Potter, M. Simpson
Monash University (AUSTRALIA)

3. Experimental study of a horizontal pneumatic transport in the medium phase conveying
S. Laouar, Y. Molodtsof, A. Delebarre
Universite de Technologie de Compiegne (FRANCE)

4. Fluidization in pyroclastic flow
Antonio Marzocchella, Piero Salatino, Vincenzo Di Pastena, Lucio Lirer
Universita degli Studi di Napoli (Federico II) (ITALY)

5. Residence time distribution of particles in rotary kilns
Graeme E. McTait, David M. Scott, John F. Davidson
University of Cambridge (UK)

20:40 - 21:15 POSTER VIEWING for SESSIONS E AND F and Social Hour

21:15 - 22:00 GENERAL DISCUSSION for SESSIONS E AND F

19:30 - 21:00 Set up posters for Sessions J and K

Thursday, May 21, 1998

07:00 - 08:15 Breakfast

08:15 - 08:55 PLENARY LECTURE:
Development of new fluidization technologies for energy conversion and ironmental processes
Professor S. Mori
Nagoya University (JAPAN)

09:00 - 10:10 SESSION J: GAS-SOLID REACTOR MODELING AND APPLICATIONS
(8 mini presentations)

1. Influence of the local catalyst activity on the conversion in a riser reactor
R.H. Venderbosch, W. Prins, W.P.m. van Swaaij
Twente University of Technology (THE NETHERLANDS)

2. Conversion expressions for FF reactors
Daizo Kunii, Octave Levenspiel
Oregon State University

3. A study of gas-solid contact in a downward fluidized bed with the cracking of cumene
J. Bayle, S. Afara, C.L. Briens, M.A. Bergougnou, R. Pontier, T. Gauthier
Institut Francais du Petrole (FRANCE)

4. Mathematical modeling of the combustion of gases in bubbling fluidized beds
Raj A. Srinivasan, Suresh Sriramulu, Pradeep K. Agarwal
University of Wyoming (USA)

5. Effects of operating conditions on photocatalytic reduction of Nox in a fluidized bed of TiO2
Satoru Matsuda, Hiroyuki Hatano, Katsumi Tsuchiya
National Institute for Resources and Environment (JAPAN)

6. Vacuum fluidization: Application to drying
Joseph Arnaldos, Bulent Kozanoglu, Joaquim Casal
Universitat Politecnica de Cataluyna (SPAIN)

7. High efficiency segregation of particles in gas fluidized beds
Ji-Yu Zhang, Guo-Hua Luo, Hui Pen
Chinese Academy of Sciences (CHINA)

8. Particle shedding in slugging fluidization
L.G. Gibilaro, P.U. Fuscolo, S. Rapagna, Y.A. Sergeev, R. Di Felice
Institut de Science et de Genie des materiauz et Procedes (ITALY)

09:55 - 10:40 SESSION K: CATALYTIC CRACKING AND COMBUSTION
(7 mini presentations)

1. Hardware modifications to overcome common operating problems in FCC catalyst strippers
Richard C. Senior, Christopher G. Smalley, Eusebius Gbordzoe
Mobil Technology Company (USA)

2. Troubleshooting of a commercial FCC unit regenerator system
Sankar Pulupula, Harendra Singh, S.J. Chopra
Engineers India Ltd. (INDIA)

3. The effects of heat transfer on FCC regenerator air manifold distributors
J.J. Vander Laan, J.W. Wells
Phillips Petroleum Company (USA)

4. Simultaneous sulfur and metal capture by lime during fluidized bed coal combustion
T.C. Ho, K.S. Wang, C.C. Shie, J.R. Hopper
Lamar University (USA)

5. Solids segregation in a CFB-boiler furnace
F. Johnsson, C. Breitholtz, B. Leckner
Chalmers University of Technology (SWEDEN)

6. Drastic reduction of Nox and N2O emissions from BFBC of coal by means of CO2/O2 combustion: Effects of flue gas recycle and coal type
Toshimasa Hirama, Hideo Hosoda, Naohiro Azuma, Koji Kuramoto, Jun-ichiro Hayashi, Tadatoshi Chiba
Hokkaido National Industrial Research Institute, AIST (JAPAN)

7. Comparison of cold model versus hot unti and development of a method to determine the circulation rate for internally circulating fluidized beds for catalytic cracking
A. Reichhold, W. Fimberger, H. Hofbauer
Vienna University of Technology (AUSTRIA)

10:30 - 11:20 POSTER VIEWING for SESSIONS J and K and Coffee Break

11:20 - 12:20 GENERAL DISCUSSION for SESSION J and K

12:30 - 14:00 Lunch

14:00 - 18:30 Ad hoc sessions and/or free time
Set up posters for Sessions H and I

18:30 - 19:00 Cash Bar

19:00 - 21:30 Banquet

Friday, May 22, 1998

07:00 - 08:15 Breakfast

08:15 - 09:30 SESSION H: MEASUREMENT TECHNIQUES, CHAOS AND SYSTEM ANALYSIS
(11 mini presentations)

1. Development of a thermal method for measuring the transition velocities of fluidized binary mixtures
S. Zerguerras, D. Gauthier, G. Flamant
IMP-CNRS (FRANCE)

2. A new optical probe working in high temperature fluidized beds
D. Hernandez, J.D. Lu, D. Gauthier, G. Flamant
IMP-CNRS (FRANCE)

3. CREC-GS-Optiprobe for particle cluster characterization
S. Krol, H. De Lasa
University of Western Ontario (CANADA)

4. The discrimination of cluster characteristics from fiber-optical probe signals in circulating fluidized beds
Christoph Rudnick, Joachim Werther
BP Chemicals Ltd. (GERMANY)

5. Single particle tracking in interconnected fluidized beds
Cornelis S. Stellema, R.F. Mudde, Z.I. Kolar, A.W. Gerritsen,
J.J.M. de Goeij, C.M. van den Bleek
Interfaculty Reactor Institute, Delft University of Technology
(THE NETHERLANDS)

6. Application of X-ray imaging to fluidized bed scale-up
Michele Fiorentino, David Newton
BP Chemicals Ltd. (UK)

7. Attenuation of sound in beds of particulate materials and application to measurement of flow rate
Stephen Tallon, Clive E. Davies
Industrial Research Limited (NEW ZEALAND)

8. Chaotic characteristics of gas-solid flow in a circulating fluidized bed
Hongshen Ji, Hiraoki Ohara, Atsushi Tsutsumi, Kunio Yoshida
University of Tokyo (JAPAN)

9. A comparison of local chaotic behaviors in a riser and a downer
Yi Cheng, Fei Wei, Qian Lin, Yong Jin
Tsinghua University (CHINA)

10. Chaos control applied to the hydrodynamics of gas-solid fluidized bed reactors to improve chemical performance
Sander Kaart, Jaap C. Schouten, C.M. van den Bleek
Delft University of Technology (THE NETHERLANDS)

11. Wavelets analysis of dynamic behavior in fluidized beds
Jinqiang Ren, Jinghai Li
Academia Sinica (CHINA)

09:40 - 10:10 SESSION I: LIQUID-SOLID AND THREE-PHASE FLUIDIZATION, AND
APPLICATIONS
(4 mini presentations)

1. Gas jetting and bubble formation in high pressure liquid-solid suspensions
Xukun Luo, Katsumi Tsuchiya, Liang-Shih Fan
The Ohio State University (USA)

2. Minimum liquid velocity for particle transport from gas-liquid fluidized beds
J.-P. Zhang, N. Epstein, J.R. Grace
University of British Columbia (CANADA)

3. High cell density growth of mammalian neural stem cells as aggregates in bioreactors
Michael S. Kallos, Brent A. Reynolds, Angelo L. Vescovi, Leo A. Behie
University of Calgary (CANADA)

4. A comparison of gas-solid and liquid-solids fluidization using kinetic theory and statistical mechanics
Dimitri Gidaspow, Lu Huilin
Illinois Institute of Technology (USA)

10:10 - 11:00 POSTER VIEWING for SESSION H and I and Coffee Break

11:00 - 12:00 GENERAL DISCUSSION for SESSION H and I

12:00 - 12:20 Closing Remarks

12:30 - 14:00 Lunch and Adjournment

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